
Pumps and inducers are some of the most widely-used rotating machines. The range of usage includes simple hydraulic irrigation devices, rocket engines and power generation plants. For more than 50 years, hydraulic pump and inducer design has been based on “savoir faire” passed on by engineers’ experiences, leading to an important empirical knowledge base with each new design. Despite the lack of detailed knowledge of the flow field, the designers have successfully increased the efficiencies of pumps and inducers.
Today, CFD plays a major role in the design process challenging the conventional rules and pushing the efficiency envelope further.
As rotating machinery leader, ANSYS CFX software has been used, world wide, not only as an analysis tool but incorporated into the early design process. Thus, testing costs have been reduced significantly for many companies using a “virtual or numerical test rig”.
ANSYS CFX software contains a state-of-the-art cavitation model providing a realistic picture of the size and extent of cavitation.

Graphic courtesy of Engineered Machine Products, Inc.